Re: [Qemu-devel] [PATCH] qmp: make qmp-shell work with python3

[Cleber Rosa <crosa@redhat.com>]

On Tue, Jun 18, 2019 at 10:29:31AM -0400, Igor Mammedov wrote:
> python3 doesn't have raw_input(), so qmp-shell breaks.
> Use input() instead and override it with raw_input()
> if running on python2.
> 
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
>  scripts/qmp/qmp-shell | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/scripts/qmp/qmp-shell b/scripts/qmp/qmp-shell
> index 7776c7b141..8c49b39afa 100755
> --- a/scripts/qmp/qmp-shell
> +++ b/scripts/qmp/qmp-shell
> @@ -308,7 +308,11 @@ class QMPShell(qmp.QEMUMonitorProtocol):
>          @return True if execution was ok, return False if disconnected.
>          """
>          try:
> -            cmdline = raw_input(prompt)
> +            try: # attempt to set Python2 override
> +               import __builtin__;
> +               getattr(__builtin__, 'raw_input', input)
> +            except ModuleNotFoundError: pass

Something like:

   if sys.version_info[0] == 2:
       input = raw_input

Also does the job, and may be considered simpler and easier to read.

- Cleber.

> +            cmdline = input(prompt)
>          except EOFError:
>              print()
>              return False
> -- 
> 2.18.1
>